Edward spencer hall



UNITED STATES PATENT OFFICE.

EDWARD SPENCER HALL, OF'NEW YORK, N. Y.

BRAKE FOR BICYCLES.

SPECIFICATION forming part of Letters Patent No. 554,419, dated February11 1896. Application filed June 25, 1895. Serial No. 55 8,973. (Nomodel.)

To aZZ whom it may concern: I

Be it known that I, EDWARD SPENcEn HALL, of the city, county, and Stateof New York, have invented a new and useful Improvement in Brakes forBicycles, of which the following is a full description.

The accompanying drawings illustrate the invention, of which- Figure 1is a plan View of the brake applied to an axle; Fig. 2, an end sectiontaken on line 00 00, Fig. 1; and Fig. 3 a detail view of part ofband-brake and sustaining-bar.

This invention is an improvement upon the band-brake for which I have anapplication in the Patent Office, bearing the SerialNo. 524,966, andwhich was allowed on the 21st day of February, 1895. I have discoveredthat the methodas illustrated by the drawings in that application ofsecuring the end of the band-brake therein shown would tend to directthe pull of the brake upon one side of the ball-bearings of the journalsand hence induce more wear on that side. I therefore have invented anindependent device to which that end of the band-brake is attached, andwhile it diminishes this pressure upon one side of the ball-bearings italso furnishes a wider bearing-surface upon the axle and aids inapplying the brake.

In the drawings, 11 is the crank-shaft upon which the band-brake iswound.

I is the band-brake coiled upon the axle, which consists of a coil orcord, wire, or band made of suitable material, and if of metal may beproperly tempered to give it sufficient spring to return it to normalwhen released. The brake should be so wound upon the shaft that whendrawn in contact therewith the is attached to an independent bar or rodA. For convenience I have provided this end of the band with theshoulders t" d and one end of the bar A with a slot a to pass behind theshoulder and hold that end of the band. It may be attached by any othermethod, if desired. The other end of the independent bar passes throughan opening or slot in the tube and need not be otherwise secured orfastened. For convenience I have also scooped out the bar, as shown at ato conform in shape to the axle and give a good bearing-surhaving one ofits ends connected with the actuating devices of the brake, and anindependent bar having one of its ends attached to the opposite end ofthe band, and its other end passed through a slot in the tube inclosingthe axle, and adapted to contact with the axle at a point between theend attached to the brake and the slot in the tube.

2. In a brake for a bicycle an axle inclosed within a tube, incombination with a bandbrake coiled upon the axle within the tube,having one of its ends connected with the actuating devices of the brakeand its other end attached to the extremity of an independent bar, thelatter scooped out to conform to the shape of the axle, and means forholding the free end of the independent bar substantially as described.

Signed at New York, in the county of New York and State of New York,this 22d day of June, A. DQ1895.

E. SPENCER HALL. Witnesses:

R. P. HEss, A. MITCHELL HALL.

